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Asked: 2026-05-17T02:41:41+00:00

I try to serialize an instance of my ActiveRecord model to JSON (using render

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I try to serialize an instance of my ActiveRecord model to JSON (using “render :json => @entities” or “@entities.to_json”), but I always get an CircularReferenceError (“ActiveSupport::JSON::Encoding::CircularReferenceError (object references itself)”).
This only happens when the ActiveRecord instances are queried by using ThinkingSphinx. The to_xml serialization works fine. Is that a known problem? I am using the latest Rails 3 and ThinkingSphinx.

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1 Answer

  1. Editorial Team

    “render :json => @entities.to_a” works around that problem.

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